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Finding the Fourth Proportional to 457,680.12, 631,635.86 and 253,794.97

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Solution

The fourth proportional to 457,680.12, 631,635.86 and 253,794.97 is: 350,257.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,680.12 : 631,635.86 = 253,794.97 : x
  2. Step 2: Convert to fraction form
    457,680.12/631,635.86 = 253,794.97/x
  3. Step 3: Cross multiply
    457,680.12x = 631,635.86 × 253,794.97
  4. Step 4: Simplify right side
    457,680.12x = 160,306,001,291.56
  5. Step 5: Solve for x
    x = 160,306,001,291.56/457,680.12
  6. Step 6: Final answer
    x = 350,257.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.